We don't just have sex to reproduce—new research suggests that using sex to manage social tension could be a trait that existed in the common ancestor of humans and apes six million years ago. Humans ...

Psychologists from Durham University, UK, have observed the behavior of 90 sanctuary-living apes to establish whether bonobos were more likely than chimpanzees to comfort others in distress. The study ...

Chimps are notorious for hostility toward chimps from another group. Is that part of the human makeup as well? A new study of bonobos, our other... Unlike chimps, bonobos offer hope that maybe we can ...

Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...

A new look into the private lives of chimpanzees has found that the primates settle disagreements with close friends by rubbing genitals together, a behavior previously that's commonly seen in their ...

Human brains still react to chimp voices, hinting at a deep evolutionary link in how we recognize sound.